Before Greta Thunberg captured the world's attention with her rousing speech on the climate crisis, the 16-year-old activist already had a packed schedule. This week, the Swedish teen delivered a commanding address at the United Nations Climate Action Summit. Last week, she organized a global climate strike across 139 countries. She was even nominated for a Nobel Peace Prize. Here's where the Swedish climate activist is going next, said the organizers of the global climate strike. She won't go back to school: She won't return to Europe for at least nine months, but she's staying busy. She'll tour Canada and...